Snailbob R

Edit 2 7 …
Grass Grass Grass Wood Wood Wood

1
Black Green Orange Yellow

6 1 6 7
2
Black Green Orange Red Yellow

5 2 1 9 3
3
Black Green Orange Red Yellow

5 2 4 4 5
4
Black Green Orange Red Yellow

7 1 3 3 6
5
Black Green Orange Red Yellow

5 3 4 3 5
6
Black Green Orange Yellow

6 3 6 5


 Black
 Green
 Orange
 Red
 Yellow
χ² test
Grass (observed)
 6
 1
 6
 0
 7
3.49
Grass(observed)
 5
 2
 1
 9
 3
9
Grass(observed)
 5
 2
 4
 4
 5
0.58
Total
 11
 5
 11
 13
 15
χ² test total:
Grass(expected)
 3.6
 1.6
 3.6
 4.3
 5
13.07
Grass(expected)
 3.6
 1.6
 3.6
 4.3
 5

Grass(expected)
 3.6
 1.6
 3.6
 4.3
 5









Wood(observed)
 7
 1
 3
 3
 6
χ² test
Wood(observed)
 5
 3
 4
 3
 5
0.26
Wood(observed)
 6
 3
 6
 0
 5
0.29
Total
 18
 7
 13
 6
 16
0.03
Wood(expected)
 6
 2.3
 4.3
 2
 5.3
χ² test total:
Wood(expected)
 6
 2.3
 4.3
 2
 5.3
0.58
Wood(expected)
 6
 2.3
 4.3
 2
 5.3











P value for grass area:
P value equals 0.0419


P value for wood area:
Chi2=0.58 DF=6
P value equals 0.9653

From these results, our P value indicates that the differences in phenotypes are not significant and therefore we must accept the null hypothesis. Selection is not a factor for the different phenotypic frequencies in the two habitats; rather, it is genetic drift that has caused these differences.